Jar opener



April 28, 1931- w. A. CHARLESTREAM 71 J AR OPENER Filed March 7, 1930 INVENTOR m'foansv Patented Apr. 28, 1931 UNITED STATES WILLIAM A. cfiAnLEs'rnEAM. on EAGLE BRIDGE, EW YORK JAR OPENER Application filed March 7,

My present invention has reference to a simple, cheaply constructed and effective means for facilitating the removal of caps from sealed jars.

To the attainment of the foregoing the invention consists in the improvement hereinafter described and definitely claimed.

In the drawings:

Figure 1 is a side elevation of a jar, with parts in section, illustrating a means whereby the cap of a jar may be readily removed therefrom.

Figure 2 is a plan view of one form of the improvement.

Figure 3 is a side elevation with parts in section thereof. V

Figure at is a plan View illustrating a modification.

Figure 5 is a plan view illustrating a still further modification.

As is well known the outer ring which affords the sealing between the cap 1 and the mouth of a jar 2 is so tightly compressed between the said cap and jar that the ready removal of the cap from the jar is obstructed.

The rubber ring gasket is indicated by the numeral 3. To facilitate the removal of the top or cap 1 from the mouth of the jar 2 it is necessary that animplement be arranged between the gasket and the said mouth of the jar. Ordinary implements for this purpose are not eflective for the reason that they do not permit of the escape of air between the cap and the mouth of the jar.

To facilitate the removal of the capis the object of this invention. The improvement comprises a comparatively narrow metal member 4. The shank of the member 4 may be received in a handle 5. The portion of the member 4 projecting beyond the shank 5 is longitudinally grooved, as at 6, and the end thereof is widened, as at 7. The said end is provided with a transverse groove. 8 that communicates with the groove 6. By reference to Figure 3 of the drawings it will be seen that the outer end of the member 4 has its opposite faces inclined toward the end thereof, so that the outer end of the said member is comparatively thin or sharpened.

This end of the member is passed between the 1930. Serial No. 434,051.

flange 9 of the jar 2 and the flange of the cap 1 and the grooves 8 and 6 provide an air passage whereby a vacuum created between the jar and its sealing cap 1 will be broken and as a result permit; of the ready removal of the cap from the jar. I i I In Figure A} the construction is similar to that previously disclosed, except that the widened or headed end of the member 4.. is

formed 'with'a' central depression 9 that communicates with the transverse groove 8. The depression 9 is notabsolutely essential but will materially assist in breaking the vacuum between the gasket 3 and the mouth of the Jar, as atmospheric air will be conducted through this depression and directed between V the gasket and the outer surface of the bottle mouth, the transverse grooves directing atmospheric air laterally .between the gasket and the flange 9 at'the mouth of the bottle. In Figure 5 the device is similar to that previously set forth except that the member 4 is in the nature of an ordinary can opener and has its shank provided with both the longitudinal and transverse grooves, the lat ter being provided in the head or widened end of the said shank.

Havingxdescribed the invention, I claim: A device for opening the covers for bottles which are sealed by a gasket, comprising a. shankthat has its opposite faces beveled to the end thereof, whereby the said end is sharpened and the said end being extended laterally from the shank to provide an enlargement, one of the beveled faces of the shank'having a longitudinal groove extending through its widened and pointed end and the. said widened end having a transverse groove that intersects the longitudinal groove, for the purpose set forth. 90 In testimony whereof I afiix my signature. WILLIAM A. CHARLESTREAM; 

